/*
 *
 * Paros and its related class files.
 * 
 * Paros is an HTTP/HTTPS proxy for assessing web application security.
 * Copyright (C) 2003-2004 Chinotec Technologies Company
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the Clarified Artistic License
 * as published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * Clarified Artistic License for more details.
 * 
 * You should have received a copy of the Clarified Artistic License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.parosproxy.paros.core.scanner;

import java.util.Vector;

import org.parosproxy.paros.network.HttpMessage;

/**
 * 
 * To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Generation - Code and Comments
 */
abstract public class AbstractAppParamPlugin extends AbstractAppPlugin {

	private Vector<VariantAbstractQuery> listVariant = new Vector<VariantAbstractQuery>();

	private Variant variant = null;
	private NameValuePair originalPair = null;

	public void scan() {
		listVariant.add(new VariantURLQuery());
		listVariant.add(new VariantFormQuery());

		for (int i = 0; i < listVariant.size() && !isStop(); i++) {
			HttpMessage msg = getNewMsg();
			variant = (Variant) listVariant.get(i);
			variant.setMessage(msg);
			scanVariant();
		}

	}

	private void scanVariant() {
		for (int i = 0; i < variant.getParamList().size() && !isStop(); i++) {
			originalPair = (NameValuePair) variant.getParamList().get(i);
			HttpMessage msg = getNewMsg();
			scan(msg, originalPair.getName(), originalPair.getValue());
		}
	}

	abstract public void scan(HttpMessage msg, String param, String value);

	/**
	 * Set the paramter into the current message. The position will be handled
	 * by the Abstract class. If both param and value is null, the current
	 * parameter will be removed.
	 * 
	 * @param msg
	 * @param param
	 * @param value
	 * @return
	 */
	protected String setParameter(HttpMessage msg, String param, String value) {
		return variant.setParameter(msg, originalPair, param, value);
	}
}
